diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml
index 8bf8af302b..01abe71f84 100644
--- a/doc/src/sgml/ref/create_table.sgml
+++ b/doc/src/sgml/ref/create_table.sgml
@@ -275,7 +275,8 @@ CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXI
      <para>
       Rows inserted into a partitioned table will be automatically routed to
       the correct partition.  If no suitable partition exists, an error will
-      occur.
+      occur.  Also, if updating a row in a given partition causes it to move
+      to another partition due to the new partition key, an error will occur.
      </para>
 
      <para>
diff --git a/doc/src/sgml/ref/insert.sgml b/doc/src/sgml/ref/insert.sgml
index 06f416039b..00c984d8d5 100644
--- a/doc/src/sgml/ref/insert.sgml
+++ b/doc/src/sgml/ref/insert.sgml
@@ -526,6 +526,17 @@ INSERT <replaceable>oid</replaceable> <replaceable class="parameter">count</repl
    updated by the command.
   </para>
  </refsect1>
+ 
+ <refsect1>
+  <title>Notes</title>
+
+  <para>
+   If the specified table is a partitioned table, each row is routed to
+   the appropriate partition and inserted into it.  If the specified table
+   is a partition, an error will occur if one of the input rows violates
+   the partition constraint.
+  </para>
+ </refsect1>
 
  <refsect1>
   <title>Examples</title>
diff --git a/doc/src/sgml/ref/update.sgml b/doc/src/sgml/ref/update.sgml
index 2de0f4aad1..e86993b9cf 100644
--- a/doc/src/sgml/ref/update.sgml
+++ b/doc/src/sgml/ref/update.sgml
@@ -279,6 +279,13 @@ UPDATE <replaceable class="parameter">count</replaceable>
    sub-selects is safer, though often harder to read and slower than
    using a join.
   </para>
+
+  <para>
+   In case of partitioned tables, updating a row might cause it to move
+   to a new partition due to the new partition key.  An error will occur
+   in this case.  Also, if the specified table is a partition, an error
+   will occur if the new row violates the partition constraint.
+  </para>
  </refsect1>
 
  <refsect1>